Hammer hog

ABSTRACT

A hammer hog in various sized embodiments is arranged with respect to each embodiment to be quickly converted to reduce various materials into different sizes. After a quick pivoting of a hinged housing top, a rotatable assembly of hammers and/or impactors, with their spacers, etc., is conveniently and intermittently turned through a partial revolution, to position respective rows of hammers at the top of the rotatable assembly, so they may be replaced and/or repaired, without the need for removing this rotatable assembly from the hammer hog. If a complete interchange of the rotatable assembly is ever desired, after adjustment of the bearings and a coupling, it is conveniently lifted straight up to clear the housing. Likewise, a sizing screen is quickly replaced, as necessary, to match the reduction performance sought upon change of the hammers and/or impactors. Moreover, an anvil is readily replaced without necessitating any change in the housing of the hammer hog. In addition, main power units are quickly substituted and modified.

limited States Patent [72] inventor .llumes ll-ll. Stanton 3211 413M Ave. 1 1.115., Seattle, Waslln. 9fi10 [21] Appl. No. 2179,0741

[22] Filed Nov. 2 11, 1969 [45] Patented Dec. 1141, 1971 [54] HAMMER 11110 13 1 Claim, 7 Drawing Figs.

[51] int. (Cl .JBIlZt 113/116, 1802c 13/04 [50] Field olsenrch 241/73,82,

[56] hcllerences Cited UNlTED STATES PATENTS 1,648,625 11/1927 Shelton 241/82 1,889,183 11/1932 Rosenfeld. 241/86 X 2,490,564 12/1949 Vincent.... 241/88 X 9/1950 Fowler Strawn 241/285 AWSTIRACT: A hammer hog in various. sized embodiments is arranged with respect to each embodiment to be quickly converted to reduce various materials into different sizes. After a quick pivoting ofa hinged housing top, a rotatable assembly of hammers and/or impactors, with their spacers, etc, is conveniently and intermittently turned through a partial revolution, to position respective rows of hammers at the top of the rotatable assembly, so they may be replaced and/or repaired, without the need for removing this rotatable assembly from the hammer hog. If a complete interchange of the rotatable assembly is ever desired, after adjustment of the bearings and a coupling, it is conveniently lifted straight up to clear the housing. Likewise, a sizing screen is quickly replaced, as necessary, to match the reduction performance sought upon change of the hammers and/or impactors. Moreover, an anvil is readily replaced without necessitating any change in the housing of the hammer hog. In addition, main power units are quickly substituted and modified.

trains ten not;

BACKGROUND OF INVENTION In the past, hammer hogs have been essentially provided for a specific material reduction operation. When such operation was no longer to be undertaken, the hammer hog had to be sold, abandoned, or remodeled. Often if more than one specific material reduction operation was to be undertaken, more than one hammer hog was needed. Generally, replacement of any active components was not readily undertaken.

Therefore, this hammer hog is provided in a wide range of overall sizes and horsepowers, with each embodiment itself being provided with conveniently interchangeable selective types and sizes of hammers, impactors and screens. Access to these interchangeable parts, to an anvil, and to all other com ponents is direct and convenient. Main power units are quickly substituted and modified.

SUMMARY OF INVENTION uses, reducing wood waste, wood bark, slash debris resulting from logging operations, garbage, other refuse reduction, debris resulting from demolition of buildings, auto bodies, other metal scrap, rocks, chemical, ores, and other materials suitable to a reduction by impaction and hammering.

DRAWINGS OF A PREFERRED EMBODIMENT FIG. l is a perspective view of a hammer hog;

FM]. 2 is a sectional view taken through the hammer hog where a material is reduced in size, with arrows indicating flow of material into and out of the hammer hog, rotation of the hammers, and the pivoting hinge removal of a top housing to gain clear access to the assembly of hammers, spacers, drive shaft, and screen;

FIG. 3 is a partial view of the overall rotating assembly of the hammers and spacers mounted about the driven shaft;

FIG. 4 is a perspective view of a hammer;

FIG. 3 is a partial sectional view taken along line 5-5 of FIG. 2 indicating the spacing of some of the components such as the hammers from one another and from the screen;

FIG. 6 is a perspective view of an impactor which is changeable, end for end, for a longer overall operating life; and

FIG. 7 is a partial view similar to FIG. 2, to indicate the utilization of the impactors moving in the direction of the ar row, and also to indicate the removal of an interchangeable screen being withdrawn as indicated by an arrow and dotted lines.

DESCRlPTION OF THE PREFERRED EMBODIMENT As shown in FIG. 11, all components of hammer hog 10 are preferably directly and/or indirectly secured to an overall strong base 112. At end M of base 112, a power unit 16, such as an electric motor lb, is secured with fasteners lb. Nearer the middle E5 of base 112, driving shaft of motor in is secured to driven shaft 22 by shaft coupling 2d. Preferably, a flywheel 26 is utilized and secured to driven shaft 22. Beyond flywheel 2b is a shaft-bearing assembly 28, as shown also in H0. 5. Another like bearing assembly 2%, not shown, supports driven shaft 22 at opposite end 3tl'of base M. Accessibility to the bearing interior and to shaft 22 is obtained upon removal of cover 32 secured with fasteners 34L These components complete the provision of a strong base 12 upon which is mounted an overall powerful shaft-rotating means 36 with its control panel 37.

The balance of the hammer hog components utilize this overall powerful shaft-rotating means 36, as shown in FIGS. 1, 2, 3, 3, and 7, by first installing on and about removed driven shaft 22, using keys 39, a selected hammer assembly 38 of: hammers as with chisel ends lll, and/or impactors 42 with their associated spacer discs 43, 44, end plates 45, hammerbacking plates db, hammer bolts 48 and nuts 50, rotor bolts 52 and nuts 32. Thereafter this hammer assembly 38 on driven shaft 22 is lowered into a top-opening overall hog housing 56 which positions all the cooperating and complementary static components that make the operation of hammer assembly 38 effective in reducing materials into respective preselective sizes.

As illustrated in FIGS. 11, 2, 3, and 7, overall hog housing 56 is rectangular in its configuration. A substantial portionof its top 32 is always open providing an unobstructed entry 60 to receive large portions of material, not shown, which are to be reduced into smaller portions. The entry so is located over the rotating hammers All where they are moved downwardly but it does not extend over the driven shaft 22. The balance of top 32 is covered by a plate s2 having pivoting and/or lifting force attachments M.

On the sides, permanently secured respective plates 66, 68, and 70 are secured to each other and to base 12 at their bottoms with flanges 72, 7d, 76, and bolts 77. These plates 66, 68, and 74) also form the entry flanges 72, E l), 82. l-lusk sideplates es and 711! are formed along multiple-direction edges 83, to provide clearance about driven shaft 22 as indicated by the dotted line in FIG. 2. A lower backplate 84, opposite front plate 6%, with flange as is secured to base 112 and to husk sideplates db and 70 by welding. This: welded assembly 88 of plates forms the outer permanent portions of overall hog housing 36. Gusset plates 9 0 are used throughout for added strength.

As illustrated in FIGS. l and 2, cover plate 62 is part of a subassembly 92 which is cleared away, preferably by pivoting about hinge Ml, to provide immediate direct access to the selected hammer assembly 38. Thereafter the selected hammer assembly 32 on driven shaft 22 is readily accessible for rotation and/or straight away upward lifting and removal, if necessary for inspection, repair and/or changeover. Door sideplates 96, W of this subassembly 92, opposite one another, are welded to cover plate 62 and to bias plate 100. Their bottom multiple-direction edges 102 match edges 83 of plates tit and 70 fitting snugly during operations of hammer hog 110. Also plates 96, 98 extend beyond lower plate 84 and hinge 94 to join a horizontal shelf plate R04 which completes the space-defining outer portions of pivotable subassembly 92.

As illustrated in FIGS. 1, 2, 5, and 7, other space-defining structures are used inside of overall hog housing 56. They guide and cooperatively control materials, not shown, which are undergoing the reduction process as the overall shaftrotating means 36 is rapidly revolving. Below entry 60, interior hopper-receiving guide plate 106 is welded on a bias between outer husk sideplates be and 70, As hopper receiver plate we approaches the rotating locale of all hammers 40 or impactors 412 it terminates. However, its guiding function is continued by the removable and interchangeable stronger anvil plate lllllb backed by a reinforcement bar us. As indicated in FIG. 1, this subassembly 112 of anvil plate 108 and bar 110 extends through sides 66 and 703, where it is optionally bolted in place or welded in such a way to be easily replaced when worn, by freeing it and then longitudinally pulling it clear of overall hog housing 56. At spaced locations, the hopper receiving or guiding plate W6 is braced by plate stiffeners lid to avoid its deflections and thereby to keep it aligned with anvil plate 10b.

Material, which is reduced sufficiently, upon the cooperating action of hammers 40 or impactors A2 in conjunction with anvil plate 108 and the initial guiding structures, such as hopper receiver plate 106, is forced out the bottom. This is indicated by the directional arrows in FIG. 2. The reduced material passes through openings 1116 in an arcuate removable and interchangeable screen plate 118. At all times a preset clearance is maintained between hammers 4G) or impactors 42 and both the anvil 108 and screen 118, as the hammers 40, for example, are revolving at high speed. During such revolutions, hammers 40, are confined both by their mounting shaft or bolt 48 and also between adjacent hammer-backing plates 46.

As illustrated in FIGS. 2, 5, and 7, each screen plate 118, used at any time because of its preferred hole size, is conveniently installed and removed as indicated by the motion arrow in FIG. 7. It is both guided and held in position by respective upper and lower, or top and bottom, retainers 120, 122 which in turn are welded to respective husk sideplates 66, 70.

By the utilization of many hammer and/or rotor bolts or shafts 48, 52, and all the respective small and large spacer discs 43, 44 and backing plates 46, their respective sizing and grouping is conveniently undertaken to meet many operating specifications. In so doing, consideration is also given to the selection of a screen 118 having a preferred hole size. The overall result is a preferred size of the reduced material obtained through the efficient and continuous operation of hammer hog 10.

In FIG. 4, a hammer 40 is shown having its mounting hole 124 at one end to receive a bolt or shaft 48 and having a chisel point 41 located at its opposite end. A hammer 40 of this configuration is often used during reduction of whole wood I pieces.

in FIG. 6, an impactor or a bark-reduction hammer 42 is shown having dual mounting holes l26 used alternately. This permits a convenient, on the spot changeover from end to end to compensate for wear.

During any replacement of either hammers 40 or impactors 42, the pivoting of subassembly 92 is quickly undertaken. The lift out of overall shaft-rotating means 36 likewise is readily accomplished for no obstructions are in the way. Then when so held above, or taken to a work station, rotating means 36 may be modified by selective full or partial withdrawal of one or more bolts or shafts 48, 52. Where only hammers 40 or impactors 42 are to be modified and backing plates are being used as illustrated in FIGS. 2, 3, 5, and 7, then only hammer shafts or bolts 48 need be partially or fully withdrawn, the balance of the small and larger spacer discs 43, 44 being retained by rotor shafts or bolts 52.

As illustrated in FIG. 2, the pivotal subassembly 92 of the overall hog housing 56 is formed as a receiving chamber 128 for heavier particles such as scrap metal, nails, bolts, etc. often referred to as tramp metal. The top inner portions of receiving chamber 128 have two arcuate plates, 130, 132 secured along one common lower edge 13L One plate 130 is curved about the shaft center to direct lighter materials back around for a second pass by anvil 108 and screen H8. The other plate 132, is curved on a radius about an imaginary center spaced from the shaft center and it is arranged to intercept and to deflect heavier particles, not shown, and redirect them downwardly to horizontal shelf plate 104. These heavier particles remain there in this receiving chamber 128 until removed conveniently through access door 134 mounted by hinge 136 to back bias plate 100. A handle 138 and abutment 140 are secured to door 134 to assist in its positioning and movement.

SUMMARY OF ADVANTAGES As indicated by the description and illustration of this preferred embodiment, hammer hog in any respective overall hog housing 56 configuration is readily adaptable to a multiple number of interchanges of cooperating action components to reduce in size many different starting materials to many different resulting sizes. Moreover, such convenient changeover features underlie the convenient replacement of worn components.

The changeover, repair, and/or replacement of hammers 40 is preferably done with the overall shaft-rotating means 36 and its hammer assembly 38 remaining in lace. The top subassembly Q2 is unfastened by removal 0 bolts 93 and pivoted clear. Then driven shaft 22 is intennittently turned through a partial revolution, to position respective rows of hammers 40 so their long hammer bolts 48 may be pulled endwise clearing of hog housing 56 and releasing the hammers 40 for their replacement and/or repair.

The hammers 40 of each embodiment may be so repaired, and/or modified. Moreover, there are many sizes of the embodiments themselves. For example, there is a small unit having an infeed opening of l2 inches by 18 inches, operating an I l-inch-diameter rotor at 1,800 r.p.m., and having a capacity of reducing, for example, l'btons per hour of bark through a Zia-inch screen. There are other sizes, for example, a larger embodiment has an infeed opening of 64 inches by 96 inches, operating a 3056-inch-diameter -diameter rotor at 720 r.p.m. and having a capacity of reducing, for example, tons per hour of bark through a Zia-inch screen.

All embodiments with and/or without modifications handle the reduction of many different materials such as: wood waste, wood bark, slash debris gathered after logging operations, debris collected upon demolition of buildings, garbage, other refuse, auto bodies, other scrap, rocks, ores, chemical, and many others.

i claim:

1. A hammer hog machine for reducing in size various materials, comprising:

a. a base;

b. a power unit secured to the base;

c. a shaft secured to the power unit;

d. bearings and mountings to rotatably position the shaft on the base;

e. a hammer assembly secured to the shaft, comprising intum: small spacer discs keyed to the shaft in turn secured to the power unit to determine the location of hammers and hammer backing plates; large spacer discs keyed to the shaft adjacent to the smaller spacer discs to determine the space between hammers and hammer-backing plates and having holes spaced about their portions radially extending beyond the adjacent small discs; hammers and hammer-backing plates having holes arranged in alignment with the holes of the large spacer discs; bolts extending through the holes of the large spacer discs, and respectively through holes of the hammers and hammerbacking plates; nuts securing the bolts in place to complete the hammer assembly; and keys and slots on the shaft to keep the large and small spacer discs secured to the shaft and thereby secure the hammer assembly to the shaft;

f. a housing assembly having a top infeed opening and thereafter partially surrounding the hammer assembly leaving clearance for the upward removal of the hammer assembly and the shaft;

g. a hopper assembly installed within the housing assembly to guide the flow of materials received through the infeed opening;

h. an anvil removably fitted to the housing assembly to continue the effective guiding function of the hopper assembly while performing the anvil function;

i. a removable arcuate screen fitted to the housing assembly to continue the effective guiding function of the hopper assembly while performing the sizing function;

j. a heavier particle-collecting chamber having an access door and pivotally connected to the housing assembly to continue the continuity of the guiding function of the hopper assembly while providing a space to capture heavier parts not capable of further reduction, and yet at all times to be pivoted sufficiently clear of the hammer assembly and shaft to permit hammer inspections, changes, repairs and when necessary the complete upward lifting removal of the shaft and hammer assembly. 

1. A hammer hog machine for reducing in size various materials, comprising: a. a base; b. a power unit secured to the base; c. a shaft secured to the power unit; d. bearings and mountings to rotatably position the shaft on the base; e. a hammer assembly secured to the shaft, comprising inturn: small spacer discs keyed to the shaft in turn secured to the power unit to determine the location of hammers and hammer backing plates; large spacer discs keyed to the shaft adjacent to the smaller spacer discs to determine the space between hammers and hammer-backing plates and having holes spaced about their portions radially extending beyond the adjacent small discs; hammers and hammer-backing plates having holes arranged in alignment with the holes of the large spacer discs; bolts extending through the holes of the large spacer discs, and respectively through holes of the hammers and hammer-backing plates; nuts securing the bolts in place to complete the hammer assembly; and keys and slots on the shaft to keep the large and small spacer discs secured To the shaft and thereby secure the hammer assembly to the shaft; f. a housing assembly having a top infeed opening and thereafter partially surrounding the hammer assembly leaving clearance for the upward removal of the hammer assembly and the shaft; g. a hopper assembly installed within the housing assembly to guide the flow of materials received through the infeed opening; h. an anvil removably fitted to the housing assembly to continue the effective guiding function of the hopper assembly while performing the anvil function; i. a removable arcuate screen fitted to the housing assembly to continue the effective guiding function of the hopper assembly while performing the sizing function; j. a heavier particle-collecting chamber having an access door and pivotally connected to the housing assembly to continue the continuity of the guiding function of the hopper assembly while providing a space to capture heavier parts not capable of further reduction, and yet at all times to be pivoted sufficiently clear of the hammer assembly and shaft to permit hammer inspections, changes, repairs and when necessary the complete upward lifting removal of the shaft and hammer assembly. 